<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
      <!-- 搜索框添加区域 -->
      <el-row :gutter="20">
        <el-col :span="9">
          <el-input placeholder="请输入内容"
                    v-model="queryInfo.query"
                    clearable
                    @clear="getGoodsList()">
            <el-button slot="append"
                       icon="el-icon-search"
                       @click="getGoodsList()"></el-button>
          </el-input>
        </el-col>

        <el-col :span="4">
          <el-button type="primary"
                     @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- 商品列表渲染 -->
      <el-table :data="goodsList"
                stripe
                border>
        <el-table-column label="#"
                         type="index"></el-table-column>
        <el-table-column label="商品名称"
                         prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)"
                         prop="goods_price"
                         width="100px"></el-table-column>
        <el-table-column label="商品重量"
                         prop="goods_weight"
                         width="80px"></el-table-column>
        <el-table-column label="创建时间"
                         prop="add_time"
                         width="150px">
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作"
                         width="130px">
          <template slot-scope="scope">
            <el-button type="primary"
                       icon="el-icon-edit"
                       size="mini"></el-button>
            <el-button type="danger"
                       icon="el-icon-delete"
                       size="mini"
                       @click="removeGoodsById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum"
                     :page-sizes="[5 ,20, 30, 50]"
                     :page-size="queryInfo.pagesize"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total"
                     background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // 商品信息
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品总数
      total: 0,
      // 打开添加商品对话框
      addDialogVisible: false,
      // 商品列表
      goodsList: []
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 获取商品列表
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
      console.log(res)
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    // 最大条数改变函数
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 当前页数改变
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 删除商品信息
    async removeGoodsById (id) {
      console.log(id)
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // confirmResult  点击确认返回 confirm
      // confirmResult  点击取消返回 cancel
      if (confirmResult !== 'confirm') return this.$message.info('已取消删除')
      // 发生删除用户请求
      const { data: res } = await this.$http.delete('goods/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败')
      this.$message.success('删除用户成功')
      this.getGoodsList()
    },
    // 跳转到添加商品页面 路由
    goAddpage () {
      this.$router.push('/goods/add')
    }

  }
}
</script>

<style lang="less" scoped>
</style>
